Oral yeasts in patients with cancer of the mouth, before and during radiotherapy.
The yeasts of patients with oral cancer has been studied before and during Xr-therapy. Gram and PAS smears revealed an increase of yeast-like structures, during treatment, from 56% to 66% of the cases. Before radiotherapy oral yeasts were isolated from 56% of the patients with cancer represented by Candida albicans (30%); C. tropicalis (12%); C. glabrata and C. krusei (4%), besides six other different species (2%). During radiotherapy yeasts were isolated in 72% of the cases, as follow: C. albicans (36%); C. tropicalis (16%); Rhodotorula rubra (6%); C. kefyr; C. krusei and Pichia farinosa (4%), besides other nine species (2%). C. albicans serotype A represented 93% of the isolated samples, before treatment and 88.8% during Xr-therapy.
Paula
C R
CR
Department of Microbiology, USP.
Sampaio
M C
MC
Birman
E G
EG
Siqueira
A M
AM
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002175:Candida / Q000302:isolation & purification; D002176:Candida albicans / Q000145:classification / Q000302:isolation & purification; D002177:Candidiasis / Q000150:complications; D002294:Carcinoma, Squamous Cell / Q000150:complications / Q000382:microbiology* / Q000532:radiotherapy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009055:Mouth / Q000382:microbiology*; D009062:Mouth Neoplasms / Q000150:complications / Q000382:microbiology* / Q000532:radiotherapy; D015003:Yeasts / Q000302:isolation & purification*